The morris peters co



UNITED STATES PATENT OFFICE.

CLEMENT A. DUNBAR, OF DETROIT, MIOHIGAN, ASSIGNOR T0 THE DUNBAR MANUFACTRING COMPANY, OF SAME PLAGE.

NON-REFILLABLE BOTTLE.

SPEGIFIOATION forming part ofLetters Patent N0.595,612,da12ed December 14, 1897.

App1ioation filed November 14, 1896. Seria1No. 612,088. (N 0 model.)

T0 all whom z't may concern:

Be it known that I, CLEMENT A. DUNBAR, a citizen 01: the United. Stabes, residing ab Detroit, in the county 0f Wayne and State of Michigan, have invented certain new and usefu1 Improvement-s in Non-Refillable Botols, of Which the following is a specification, reference being had therein '00 the a-ccompanying drawings.

The invention consisns in the peculiar coustruction, arrangement, and combination of parts, as more fully hereinafter deseribed and claimed.

In the drawings, Figure 1 is a vertical centra1 section through a bottle to Which my device is app1ied. Fig. 2 is a. perspective view of the deached parts composing the device; and Fig. 3 is a section similar to Fig. l, showfing the bottle in position to be emptied of its eontents.

A is a bott1e. B is the neck thereof, which is formed with a eontrac'oed. portion O near its lower end and preferably with an annular recess D near its mouth.

E is a tubula.r casing ha.ving a. contraeted lower extension F, united to the main portion of bhe easing by the annular shoulder G.

H is a series of perforations in the sides of the tube E above the shoulder G.

H are apertures in the side 0f the tube F.

I is a packing-ring, 0f cork 01 Similar material, surrounding the tube F below the shoulder G and. adapted, when the ca.sing is placed in the neok of the 100111110, to fit tightly into the eontracted. portion C.

J is a, valve comprising the head a, Ehe coutracted tubu1ar downward extension b, adapted 110 fit within the tube F, and the annular shoulder c 011 the under side 0f the head, adapted 120 sea.t upon the shoulder G. The head a is pr0vided. with a fioat which may be forme d either by atoaehing t0 it a pieee 0f cqrk 01 other light substance OI', as shown in drawings, by making within the head an aircha.mber e.

fis a series of perfomtions in the wa1ls of Lhe 1Jube b, and d is an imperforate 'portion between the said perforaoionsfand the 5110111- to the lower side of thei1ead a and extending doWn through the tube b.

L is a. weight (preferably a g1ass sphere) which is attached to the 1ower end of the counecion K.

M is a pairtition 01 baflie-plate extending aeross the casing E. This I preferably form as the bottom of a cup-shaped ca.sing N, fitting into the upper end of the casing E against a bead g and forming an upward extension 0f said. casing. Near its upper end 'uhe casing N is provided wiuh a series 0f perforations h.

In practice afer the bottle is fille. the casing containing the valve is placed in the neek 0f the botle, uhe paoking-ring I fitting into the contracted porbion C. The casing is then secured by expanding the upper end 0f the casing N, so as 130 fit within the annular recess D, as shown in Fig. l. T0 pour 01111 the liquid from the bottie, it is on1y neeessary t0 iucline il: 110 a suffieient angle f0r the weigho L to run down thetapering shoulder O of 15he bobtle, which Will relieve the tension on ohe connection K and allow the va.1v6 J to open outwardly The end of the tube F forms a.

'seafiwhichwill catch tl1e weight and prevent io fr0m falling into the neek 0f the bottle, and the liquid Will pass through the aperture H into said tube and into the tube b, passing through the perforations f and I-I into the annu1ar space R, surrounding the casing E, and thenceiahrough the perforations h out 130 the mouth 0f the bott1e, as shown in Fig. 3. That the bottle, when o11ce emptied, cannot be re filled will be readily understood, as it will be seen that the on1y way in which the valve J ea.n be opened is 130 invert or downwardly ineline the bottle, and if in this position it were immersed in the liquid the float would carry the valve to its seat.

In order 130 m'ake a bott1e which really cannot be refilled, it must be so eonsructed that the refi1ling eannot be accomplished by any 0f the manipulations 0r tests usually applied to refi1l such bottle. It is found that any valve, wheoher counterweighted 01 springbacked, unless i1: be a piston-vaive which is to be slipped some distance longitudinally 120 disclose the ports il; controls, is not safe for this purpose, for the bott1e can 100 refilled by sub1nerging it and then quiokly reciproeating lt in a horizontal position, or slightly inclined fro1n the horizontal. A piston-valve will not fulfil the oonditions required for a non-refillable bootle unless it is assooiated with two other elements. One is a float o1 buoyant elemen which will close oho valw by its buoyancy in Gase the bottle is submerged in an inverted position. Tl1e other is a counteracting weight; which Will draw it to its seat positively in any position exeept it1 is substannially in an inverted position. I have found, therefore, what I deem to be tl1e essentials of a non-refillable botole, so far as my invention goes, are L0 oombine in a filling ape1ture o1 neck of Ehe bottle a piston-valve adapted to be moved longitudinally to close o1 disolose the ports it connrols, and having a buoyant ele1nent whioh will elose the valve and hold it elosed in anyiuverted posit-ion of Ll1e bottle when submerged in liquid, and a oounteracuing weigbt sufiioient to overcome the buoyaney of the "alve whioh is applied in the upright posiuion of the valve o1 positions approaching the upright.

\Vhat I cla'un as my invention is 1. In a nonrefillable bottle, the cornbination With a bottle-neck, of u valve mechanism for permitting ehe outflow and prohibiting Lhe inlet of liquid, and comprising a ported oasing, a buoyant piston-valve for governing the ports of the casing, and provisions wl1ereby tl1e valve may hzwe an extended reciprooabing movement while aoting to close the ports, and a eounteracting weigho.

2. In a non-refillable bottle a buoyant elongated piston-valve, an elongated seat over whioh the valve has 130 move t0 be opened and a eounteracting weigh suspended by a flexible oord wit hin tl1e botle.

3. In a non-refillable bottle, ehe combination With a cylindrical easing within oho neok of the botle provided With an annular valveseac ab ins inner end, of a buoyanb pisonvalve slidingly secured in seid oylindrical ca.sing and having outlet-ports adapted 130 be disclosed by the outward movement of said piston, a head on seid piston adapted to seab 911 seid annular seat and a weigl1t within the botule suspended from seid valve fo1 holding i'o in ios elosed position.

4. In a non-refillable bottle, tl1e combination witl1 a oylindrioal casing within he neck of the bottle, of a piston-valve slidingly secured in said cylindrioal casing and having outlet-ports adapted to be disclosed by the outward movement 0f the valve, a float seoured to seid valve and a weigho within the boutle suspended from seid valve for the purpose desoribed.

In testimony whereof I alfix my signatnre in presence of two witnesses.

CLEMENT A. DUN BAR.

Witnesses:

M. B. ODOGHERTY, OTTO F. BARTHEL. 

